A look inside T-Mobile's Uncarrier 5 event (pictures)

T-Mobile CEO John Legere takes the stage at the Uncarrier 5 event. The animated chief executive rattled off facts about the carrier and how it stacks up against its competitors.

When Legere got to T-Mobile in 2012, he coined the Uncarrier movement, a push to get rid of contracts and differentiate T-Mobile from other mobile carriers.

Legere told the crowd that in 2012, connected Internet devices surpassed PCs. In 2015, mobile Internet users will surpass fixed Internet users, he says.

Alledgedly, T-Mobile customers use the most data out of the four major US mobile carriers.

T-Mobile's Voice over LTE service covers 100 million, says Legere.

Chief Marketing Officer Mike Sievert took the stage to talk about how T-Mobile is getting rid of pain points in the carrier.

Sievert introduced a new program from T-Mobile called Test Drive. You can now test out T-Mobile's network without a big commitment up front.

With Test Drive, you get a free iPhone to use for one week. After that week, you give back the phone, or else you'll be charged for the device.

First the breakup letter, now the seven night stand. With Test Drive, you can "cheat" on your current carrier.

The next big announcement from T-Mobile is that your streaming music will no longer count against your data cap. It's called Music Freedom.

Streaming music from Pandora or Spotify won't use up your data, at all. That's great news for those who have caps and like to stream audio.

T-Mobile says it's introducing Music Freedom because its networks can handle it.

Piggybacking off of Music Freedom, T-Mobile is unveiling a new streaming radio service called UnRadio. It's free for current customers who have the unlimited data plan, and $5 per month for other customers.

UnRadio boasts no ads, unlimited skips, and more than 20 million songs.

T-Mobile CTO Neville Ray, Legere, and Sievert answer questions from the audience.